Book-leaves slotter for bookbinding.



C. ANS. BOQK LEAVES SLOTTER FOR BOOKBINDING. APPLICATION IILBD JULY 13, 1911.

1, 1 05,056. Patented July 28, 1914.

W2 24 J Inventor: z messes 61!!!![08 44118.

CHARLESANS, or new YORK, N. Y.

BOOK-LEAVES SLOTTER FQR BOOKBINDING.

Specification of Letters Patent.

Application filed July 13, 1911 Patented July 28, 1914.

Serial No. 638,239.

T0 at whom it may concern I Be it known that 1, CHARLES Ans, a citizen of the United States, residing in New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Book-Leaves Slotters for Bookbinding,.of which the following is a specification.

The object of my invention is to facilitate and cheapen book-binding by providing a machine for satisfactorily slotting the backs of assembled book leaves or signatures, for duplicating such work, for accurately and symmetrically locating opposite or complementary slots singly or in series, and for making the axial planes of the symmetrically-located or complementary slots or series of slots divergent or oppositely inclined at a suitable determined angle. After the assembled leaves are so slotted, the book binding is completed by entering. and securing cords in said slots and usually by filling them with an elastic cement compounded with glue or other suitable binder.

In the accompanying drawings showing one embodiment of my invention, Figure 1 is a side elevation; Fig. 2 is a plan view; Fig. 3 is a front elevation; Fig. 1 is a front elevation of the book-leaves holder; Fig. 5 is a side elevation of the latter; and, Fig. 6 shows the assembled leaves or signatures after having been slotted by my machine.

In the practice of my invention, I provide a base 1 with shaft-supports 2 on its rear end, a crank shaft 4 revolubly mounted thereon, and a crank 6 and driving pulley 4: fixed to, and an idler pulley 4 loosely mounted on said shaft, for a driving belt 5; and I provide a belt shifter 35 attached to a rock-shaft 34 rotatably mounted on and extending to the front end of the machine base 1 and there provided with a crank handle 33, by the manipulation of which the operator may conveniently shift the driving belt 5 from the idle to the driving pulley, or vice-versa, and initiate or suspend work.

On the base 1, I provide parallel engaging guides on a slide 9; and also on a saw-carriage 8, which is pin-connected by a connecting rod 7 with the crank 6 and by its revolutions reciprocated on said slide 9. In the tool-head 10 of the carriage 8 are a plurality of saw-slots 27 for laterally positioning saws 11, which are pin mounted therein on a removable arbor 12, extend anteriorly and substantially horizontally and are loosely secured to and elastically supported by a spring-steel arm31, bolted to the carriage head 10 by a bolt 32.

To the end that I may securely hold the assembled book-leaves and quickly and accurately position them relatively to the saws .11, and duplicate such operations, I provide a rectangular trough-shaped book-leaves holding templet-like holder 19, in which the assembled book-leaves can be securely clamped between its fixed jaw 30 and its movable clamping jaw 29, which is set up by a screw 27 which engages a tapped hole in an arm 28 of said holder: and to position and secure the holder, and the book-leaves therein in the machine for slotting, I provide on the machine base 1, a bed plate '23 containing the usual bolt-slots; and thereon I mount and secure by bolts, in the usual manner, with its axis transverse to that of the machine and saws, a holder stock, 16, provided with abedplate 20 and bolt slots 21, 22,therein for bolting said stock to the machine bed plate, and an upper rectangular troughsshaped, inclined holder socket 17, in which the book holder 19 fits and the 1b0ttom 24 of which is an inclined plane; and in the jaws of said stock 16 Iprovide gageholes, 25, for a gage-pin 26, by which the .said holder may be quickly located in said socket.

The operation of my machine is as follows: One or more saws 11 of suitable gage are pivoted in the saw-slots 27 of the carriage-head 10 on the arbor 12 and connected with the elastic arm 31, which serves as a height-gage and feed-spring, to determine the proper height of the saws when setting the work and to feed the saws during sawing. The assembled book leaves are clamped in the book holder 19 which is then set in the trough or socket 17 of the holder stock 16 and positioned therein by the pin 26 which is suitably located in a pair of holes 25 and it may be by laterally shifting the stock on the bed plate 23 and re-bolting it thereto. The operator then shifts the belt, starts the machine and, applying his hand to the outstanding saw-ends, suitably presses them on the work. When one side of the book leaves is slotted, he shifts the belt,stops the macially adapted to use in this machine. Its teeth are in two series, viz., an outer, substantially horizontal series, 15, and an inner upwardly inclined series 15*, the general direction of said series making with one another a very obtuse angle, the supplement of the angle indicated by a in Fig. 1; and, as there illustrated, it has a lower, substan tially horizontal work gaging edge, 13, to which the work is set; the holder 19 and assembled leaves therein being placed in the trough 17 of the holder stock 16 and the latter slid on the bed-plate 23 until said leaves touch the gage edge 13 of the. outer 'saw 11 and then bolted fast. The successive saws of a gang are of increasing widths, as illustrated in Figs. 1 and 3, so that similar series of teeth on the several saws assembled in a gang on the carriage head 10 will be parallel. lVhen such saws are used in my machine, their inner inclined series of teeth 15, cut and deepen the slots in the bookleaves, which slots are finished and straightened during the conclusion of the cutting strokes, by the outer, horizontal series of teeth. I have found by experience that such saws do more and better work than saws of the usual tooth arrangement. V

Having thus described my invention, I claim:

1. A book-leaves slotting machine, comprising a machine base, a saw reciprocatingly mounted on said base, and means to hold the book-leaves to be slotted in position under said saw, said means comprising a rectangular trough-shaped holder, a clampjaw adjustable in said holder and adapted to clamp the assembled book-leaves, a holder stock secured on the machine base to be moved laterally of said saw, a rectangular trough-shaped holder socket in said stock to receive said clamp jaw, and an inclined bottom in said socket.

holder in a determined relation to said saw.

3. A book-leaves slotting machine comprising a machine base, parallel guides on said base, a carriage engaging said guides, an elastic saw-tensioning arm in said carriage, a saw pivoted to said carriage and limited in its upward movement by said elastic arm, means to reciprocate said carriage and saw, a holder adapted to hold as sembled book-leaves, and positioning and holding means adapted to position and hold said holder in a determined relation to said saw.

1. A book-leaves-slotting machine comprising a machine base, a carriage reciprocatingly mounted on said base, a tool head on said'carriage having a plurality of sawholding slots of different depths to accommodate different widths of saw, a saw mounted in one of said slots, and a holder for the book-leaves to be slotted adjustably secured on said base to properly position the book-leaves under the saw to be used, said holder comprising a stock secured to said base, the stock being laterally adjustable and having a socket provided with an inclined bottom to support the book-leaves at an inclined plane.

I CHARLES ANS. Vitnesses FRED. J. DOLE, J OHN MORRIS.

Copies 01' this patent may be obtained for five cents each, by addressing the Commissioner otlatents, Washington, 1L0. 

